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Lamp circuit with breathing effect

A technology with breathing and circuit, applied in the field of LOGO light circuit, can solve the problems of limited maximum driving current capacity and occupy a lot of occupancy, and achieve the effect of facilitating circuit routing and control, saving pin resources, and preventing damage.

Pending Publication Date: 2019-02-12
SAIC VOLKSWAGEN AUTOMOTIVE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because one LIN RGB controller chip can only drive a string of RGB LEDs (up to three), when the LOGO light has dozens of LEDs, a lot of LIN RGB controllers will be needed in the circuit, and each LIN RGB The controller will occupy a LIN slave node (LIN slave node) to communicate with the body, so it will occupy a lot of BCM LIN slave (BCM, BodyControl Module, body control module) node resources
In addition, the maximum allowable current of the LED in this solution depends on the thermal resistance of the LIN RGB controller chip, and its maximum drive current capability is very limited

Method used

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  • Lamp circuit with breathing effect
  • Lamp circuit with breathing effect
  • Lamp circuit with breathing effect

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Embodiment Construction

[0065] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the invention, not to limit the invention.

[0066] figure 1 A schematic block diagram of Embodiment 1 of a LOGO lamp circuit is disclosed. The LOGO light circuit with breathing effect includes a linear voltage regulator circuit module 23, a LIN transceiver circuit module 24, an internal ambient temperature detection circuit module 25, a power supply voltage detection circuit module 26, a single-chip microcomputer detection control circuit module 27, and an LED drive circuit module 29 , also includes a power supply end EMC protection circuit module 21 , a power supply reverse connection prevention circuit module 22 , a pull-up resistor module 28 and an LED ...

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Abstract

The invention discloses a LOGO lamp circuit with breathing effect, comprising: a linear voltage stabilizer circuit module connected with an LIN transceiver circuit module, a single-chip microcomputerdetection control circuit module and an LED drive circuit module; a power voltage detection circuit module connected with a power voltage module and the single-chip microcomputer detection control circuit module; the LIN (local interconnect network) transceiver circuit module connected with a BCM (body control module) and the single-chip microcomputer detection control circuit module; an interiorambient temperature detection circuit module connected with the linear voltage stabilizer circuit module and the single-chip microcomputer detection control circuit module; the LED drive circuit module connected with the single-chip microcomputer detection control circuit module and an LED lamp and used to drive the LED lamp to change; the single-chip microcomputer detection control circuit moduleconnected with the LED drive circuit module and used to detect a signal and control the above modules. An automotive LOGO lamp is used herein to implement the functions, such as a position lamp, a charging indicator lamp, a breathing lamp, and a low battery warning indicator lamp, and the integrity is high.

Description

technical field [0001] The invention relates to the technical field of automobile lamps, in particular to a LOGO lamp circuit with a breathing effect. Background technique [0002] According to statistics from the Traffic Management Bureau of the Ministry of Public Security of my country: By the end of 2017, the number of cars in my country had reached 217 million, of which the number of new energy vehicles was only 1.53 million. In the face of such a huge use of fuel vehicles, as well as insufficient reserves of petroleum resources, dependence on imports, and exhaust pollution caused by the combustion process, my country has proposed a long-term strategy for the development of new energy vehicles and encouraged enterprises to develop and produce new energy vehicles. [0003] During the use of new energy vehicles, it is inevitable to need to be charged, so the body should have lights that can correctly indicate the battery power during charging. Secondly, considering that w...

Claims

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Application Information

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IPC IPC(8): H05B33/08B60L58/12H05B44/00
CPCH05B45/20H05B45/37H05B45/10Y02B20/30Y02T10/70
Inventor 郑志军王世明张激王艳周
Owner SAIC VOLKSWAGEN AUTOMOTIVE CO LTD
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